Purohit Steel is a leading Hot Work Tool Steel Stockist and Exporter in India, supplying the chromium and tungsten hot work grades used for tooling that operates at elevated temperatures — H11 and H13 (both ESR-refined), H21 and DB6/1.2714 — for die-casting dies, forging dies and extrusion tooling.
As an ISO-certified company established in 1965, we maintain ready stock of hot work tool steel in round bar, flat bar and block form, backed by in-house bandsaw cutting, machining, grinding and EDM support for fast turnaround across India and export markets.
Table of Contents
- 1. What is Hot Work Tool Steel
- 2. Why Purohit Steel for Hot Work Tool Steel
- 3. Grades in This Category
- 4. Applications & Uses
- 5. Industries We Serve
- 6. Related Categories
- 7. Authorized Stockist Brands
- 8. Cities We Supply
- 9. Our Services
- 10. Frequently Asked Questions
- 11. About Purohit Steel
- Our Certifications
- Countries We Export Worldwide
- Export Packaging & Shipping
- Quality Inspection & Testing
- Latest Price List
- MOQ & Payment Terms
- People Also Search For
What is Hot Work Tool Steel?
Hot work tool steels are chromium and tungsten alloyed tool steels designed to retain their hardness and strength at elevated working temperatures, typically 400-600°C. Unlike plastic mould steel, these grades are stocked in the annealed (soft) condition for machining, then hardened and tempered to a working hardness of roughly 40-55 HRC once the tool geometry is finished.
The category is built around resistance to thermal fatigue (heat-checking), high-temperature strength and toughness — properties essential for dies and tooling that repeatedly contact molten or hot-worked metal, such as aluminium die-casting dies, hot forging dies and extrusion tooling.
Each grade below has its own dedicated technical page with full chemical composition, mechanical properties and heat treatment guidelines — use the grades table to jump to the grade that fits your application.
Why Purohit Steel for Hot Work Tool Steel
- Full Grade Range: H11, H13, H21 and DB6 held in ready stock for die-casting, forging and extrusion tooling
- ISO-Certified Quality: Documented quality management since 1965
- Authorized Stockist: Sourced through globally reputed manufacturers, including NLMK Verona and SeAH CSS
- ESR-Refined Options: H11 and H13 available in electro-slag remelted quality for improved cleanliness and toughness
- Value-Added Machining: In-house bandsaw cutting, precision machining, grinding, drilling, gun drilling, EDM and wire-cut
- Pan-India & Export Supply: Warehousing in Vasai with a sales outlet in Mumbai, serving customers across India and international markets
- Export-Ready Packaging: Palletised, moisture-protected packing suitable for both domestic transport and export shipment
Hot Work Tool Steel Grades in This Category
Each grade is stocked with full technical data on its own dedicated page — click through for chemical composition, mechanical properties and heat treatment guidelines.
| Grade | Typical Hardness / Key Property | Best For | Full Grade Page |
|---|---|---|---|
| H11 / 1.2343 ESR | 44-54 HRC (hardened & tempered) | ESR-refined toughness for die-casting, forging and extrusion dies | View Grade → |
| H13 / 1.2344 ESR | 44-54 HRC (hardened & tempered) | Excellent hot hardness and thermal fatigue resistance for hot forging and die-casting dies | View Grade → |
| H21 | 40-55 HRC (hardened & tempered) | Tungsten-alloyed resistance to extreme heat — hot extrusion, hot shear blades | View Grade → |
| DB6 / 1.2714 | ~44-54 HRC (hardened & tempered) | Ni-Cr-Mo toughness for forging dies and shock-loaded tooling | View Grade → |
Not sure which grade fits your tooling? Request a quotation and our technical sales team will help you select the right hot work tool steel for your process temperature, load and tool life requirements.
Applications & Uses of Hot Work Tool Steel
- Aluminium, zinc and magnesium die-casting dies
- Hot forging dies and forging hammers
- Hot extrusion tooling and dies
- Hot shear blades
- Die-casting inserts, cores and pins
- Press tooling exposed to elevated temperature
- Structural forging tooling requiring shock resistance
Choosing the Right Grade
H11 and H13 are the industry-standard choices for aluminium die-casting and general hot work tooling, with H13 offering marginally better wear resistance and H11 slightly higher toughness — both are stocked ESR-refined for premium cleanliness. H21 is preferred where tooling faces extreme, sustained heat beyond what H11/H13 can reliably handle. DB6 is chosen where toughness and resistance to mechanical shock are the priority, such as in forging dies subject to repeated impact.
Industries We Serve
- Die-casting industry (automotive, appliances, hardware)
- Forging industry
- Extrusion (aluminium and non-ferrous)
- Automotive component manufacturing
- Engineering & tooling workshops
- Heavy machinery manufacturing
Authorized Stockist
Hot Work Tool Steel Supply Locations Across India
We supply hot work tool steel across major industrial cities including Mumbai, Pune, Khopoli, Nashik, Aurangabad, Navi Mumbai, Palghar, Umbergaon, Vapi, Valsad, Daman, Vadodara, Ahmedabad, Rajkot, Hyderabad, Bangalore, Chennai, Cochin, Delhi, Gurgaon, Manesar and Sonipat — as well as to export markets.
Our Steel Products
Our Services
Frequently Asked Questions
About Purohit Steel
Purohit Steel was established in 1965 by Shree Bherumalji Rajpurohit, a visionary in metallurgy. Over the decades, we have built a strong reputation as a trusted stockist and exporter of tool steel, plastic mould steel and engineering steel products across India.
As an ISO-certified company, we source premium materials from globally reputed manufacturers and operate a modern warehousing facility in Vasai along with a sales outlet in Mumbai, enabling efficient storage, fast processing and timely delivery across India and export markets.
Read more about Purohit Steel, view our certifications, or get in touch with our technical sales team.
Our Certifications
Purohit Steel operates as an ISO-certified company, backed by documented quality management, safety and compliance certifications that support reliable supply to domestic and export customers.
View all certificates in detail on our Certifications page.
Countries We Export Worldwide
Beyond India, Purohit Steel exports tool & mould steel grades to customers across the following countries and regions:
| Export Destinations | |||||
|---|---|---|---|---|---|
| UAE | Saudi Arabia | Oman | Bangladesh | Sri Lanka | Nepal |
| Vietnam | Thailand | Indonesia | Kenya | Nigeria | South Africa |
For export enquiries and destination-specific documentation, please contact our sales team.
Export Packaging & Shipping
Bars, flats and blocks are packed to withstand handling, transit and marine shipment, whether for domestic dispatch or export orders.
- Palletised and strapped packing for round bars, flat bars and blocks
- Moisture-protected wrapping to prevent surface corrosion in transit
- Seaworthy export packing with clear shipping marks and material identification
- Documentation support including packing lists, invoices and mill test certificates for customs clearance
- Shipment by road, rail or sea freight as per order requirement and destination
Quality Inspection & Testing
Every batch held in our stock is checked through documented inspection procedures before dispatch, so mould makers and OEMs receive material with verified, traceable quality.
- Chemical composition verification against mill certificates
- Hardness testing (Brinell / Rockwell) on received stock
- Dimensional inspection as per standard bar and block tolerances
- Visual and surface defect inspection
- EN 10204 2.2 / 3.1 mill test certificates provided on request
- Third-party inspection coordination available for export orders
Full material traceability is maintained from incoming stock through to dispatch for every order.
Latest Price List
Pricing depends on section size, quantity, form (round bar / flat bar / block) and current raw material rates. Indicative guidance is below — contact us for a firm, up-to-date quotation.
| Form | Typical Price Basis |
|---|---|
| Round Bar | Per Kg, based on diameter & length — contact for latest rate |
| Flat Bar / Plate | Per Kg, based on thickness & size — contact for latest rate |
| Block (cut to size) | Per Kg / Per Piece, based on drawing — contact for latest rate |
Prices are subject to change with raw material and freight costs. Share your required size and quantity via the quotation form or WhatsApp for the latest price.
MOQ & Payment Terms
Minimum Order Quantity: Flexible MOQ depending on size and form — from small trial quantities for tooling houses up to bulk orders for OEMs, subject to confirmation at enquiry stage.
Payment Terms: Advance payment / part-advance with balance before dispatch for domestic orders; T/T (bank transfer) or Letter of Credit (LC) for export orders, depending on order value and destination.